(2 images) Lesser Black-backed Gull SP3, April 2002 & 2004, Maasvlakte, the Netherlands (51.59N 04.02E).
2002 at Missouriweg - ECT, Maasvlakte: An adult ringed, left white SP3. Probably paired with a ringed LBBG orange left EN24. SP3 was probably ringed in year 1998 and now in 5cy.
April 22 2002
below: LBBG SP3, April 29 2004, Nachtegalenkeet, Maasvlakte.
April 29 2004